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24 pin USB-C receptacle connector layout
24 pin USB-C receptacle connector

USB type-c details

Developed at roughly the same time as the USB 3.1 specification, but distinct from it, the USB Type-C Specification 1.0 defines a new small reversible-plug connector for USB devices. The Type-C plug connects to both hosts and devices, replacing various Type-B and Type-A connectors and cables with a standard meant to be future-proof, similar to Apple Lightning and Thunderbolt. The 24-pin double-sided connector provides four power/ground pairs, two differential pairs for USB 2.0 data bus (though only one pair is implemented in a Type-C cable), four pairs for high-speed data bus, two sideband use pins, and two configuration pins for cable orientation detection, dedicated biphase mark code (BMC) configuration data channel, and VCONN +5 V power for active cables. Type-A and Type-B adaptors and cables will be required for older devices in order to plug into Type-C hosts; adaptors and cables with a Type-C receptacle are not allowed.

USB type-C pinout

Description Signal A Pin Pin Signal B Description
Ground   GND A1 B12 GND Ground
SuperSpeed differential pair 1 TX, positive   TX1+ A2  B11 RX1+ SuperSpeed differential pair 1 RX, positive
SuperSpeed differential pair 1 TX, negative   TX1- A3  B10 RX1- SuperSpeed differential pair 1 RX, negative
Bus Power   VBUS A4 B9 VBUS Bus Power
Configuration channel   CC1 A5 B8 SBU2 Sideband use
USB 2.0 differential pair, position 1, positive   D1+ A6 B7 D2- USB 2.0 differential pair, position 2, negative
USB 2.0 differential pair, position 1, negative   D1- A7 B6 D2+ USB 2.0 differential pair, position 2, positive
Sideband use   SBU1 A8 B5 CC2 Configuration channel
Bus Power   VBUS A9 B4 VBUS Bus Power
SuperSpeed differential pair 2 RX, negative   RX2- A10 B3 TX2- SuperSpeed differential pair 2 TX, negative
SuperSpeed differential pair 2 RX, positive   RX2+ A11 B2 TX2+ SuperSpeed differential pair 2 TX, positive
Ground   GND A12 B1 GND Ground

Pins A2,A3,A10,A11,B2,B3,B10,B11 are not used with USB 2.0-only devices.

User uploaded image:

See also USB type C full-featured cable.

 

24 pin USB-C plug connector layout
24 pin USB-C plug connector
According to 2 reports in our database (2 positive and 0 negative) the USB-C (Type-C) pinout should be correct.

Is this pinout
USB-C (Type-C) visual pinout:click to enlarge
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